pragmasi
Responses from pragmasi
| Anybody out there replace their volume control with a Goldpoint using Vishay resistors? I switched over to attenuators a while ago, although I have no experience with Gold Point I can say they are a distinct improvement over pots - if you're not interested in the techy speccy stuff then probably best stop reading now ;-). I recently ... | |
| Midrange Noise Hum / buzz is usually down to a dodgy ground connection somewhere. I’d start by checking the contacts on the ground wire from TT to preamp, if it’s not that check the interconnects aren’t the culprit (less likely if hum is on both channels). If th... | |
| preamp-how important is separate enclosure for pwr supply? Just to be clear I was stating my experience with solid state designs... I can't comment on what type of isolation would work for tube amps and I guess if the power supply doesn't fit in the amp box it's a bit of a no brainer.@emergingsoul - I'm n... | |
| preamp-how important is separate enclosure for pwr supply? It really depends on the amount of effort the designer has gone to mitigate the emi/rfi inside the chassis of the amplifier. It will also be dependent on the components used in the amplifier. In my amplifiers I use toroidal transformers with elect... | |
| How can I establish a reference level? The quick answer is that it is very complicated and impractical to calculate the sound pressure level at the listening position based on calculations. You should measure it using a dB meter, this will allow you work out a safe listening level. Gen... | |
| Still confused about clipping after reading all the articles. All amplifiers have a maximum and minimum output voltage, if this is exceeded then the amplifier should output dc (a constant voltage) until the signal comes back into range. So if you imagine a sine wave with the top and bottom cut off then that ... | |
| Any electronic geniuses here? Again... not a genius but I've designed a few phono amps. Lundahl make nice MC transformers, they also have quite a bit of technical info on their website. There is also this handy tech note that provides guidance on setting up the input impedance... | |
| Best method to connect subwoofer to amp A general rule with hifi is that you don't want to amplify then attenuate or attenuate then amplify. In an ideal world you amplify once (to the level you want to listen to) with no attenuation (volume control). This is not practical but an ideal s... | |
| Hook Up Wire for Pre and Power Amps It depends on what the wire is conducting. Line level signals are usually very low current so you can go for a high gauge wire... 20AWG+. Silver plate is nicer to solder but tinned copper will be fine as well. Power carrying wires will need to be ... | |
| Sport Court as Listening Room? I think that would be a fantastic listening room... most hi-fi acoustic problems are down to 'small room' modal responses. High ceilings are good so use all the space you can. The only thing to bear in mind is that you'll need efficient speakers, ... | |
| If you could buy any system, regardless of price, what would it be? I'd go for Genelec 1036A monitors, 1/4 inch Studer 2 track and all of Led Zep's master tapes. | |
| Looking for professional made gainclones or chip amps recommendations Sorry... misunderstanding, I was suggesting you take a look at https://neurochrome.com/, Tom is based in Canada and ships to the US. | |
| Looking for professional made gainclones or chip amps recommendations Gainclones have been developed a fair bit since the audiosector designs were developed... although Peter Daniel's Patek was a great looking piece of kit. For the best possible quality it's worth checking out Neurochrome and specifically the Modulu... | |
| Interesting discovery when my carpets were cleaned yesterday! My house has wooden floorboards so I prefer to isolate rather than acoustically couple using spikes. It might be worth you looking at Auralex Propads. I've no experience using the Gaia feet but from a theoretical perspective to achieve optimum dec... | |
| Question For Those That Watch Movies/TV Through Your Two Channel System My thought was to do away with his small center channel speaker and replace the AV receiver with an Integrated Amp.This is exactly what I do... you just need to make sure the audio is down-mixed to stereo as someone else suggested. The process mix... |